diff --git a/src/Salts.php b/src/Salts.php
index 6cd9346..822a2b8 100644
--- a/src/Salts.php
+++ b/src/Salts.php
@@ -31,6 +31,7 @@ public function wordPressSalts(): array
         $salts['SECURE_AUTH_SALT'] = $generator->salt();
         $salts['LOGGED_IN_SALT'] = $generator->salt();
         $salts['NONCE_SALT'] = $generator->salt();
+        $salts['WP_CACHE_KEY_SALT'] = $generator->salt();
 
         return $salts;
     }